public AbstractInsnNode[] collapse() {
if (instructions != null) {
return instructions;
}
instructions = new AbstractInsnNode[total()];
int i = 0;
for (AbstractNode n : this) {
AbstractInsnNode[] nodes = n.collapse();
System.arraycopy(nodes, 0, instructions, i, nodes.length);
i += nodes.length;
}
if (instructions.length - i != 1) {
throw new RuntimeException();
}
instructions[i] = insn();
return instructions;
}
